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tty: handle compat PPP ioctls

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Multiple tty devices are have tty devices that handle the
PPPIOCGUNIT and PPPIOCGCHAN ioctls. To avoid adding a compat_ioctl
handler to each of those, add it directly in tty_compat_ioctl
so we can remove the calls from fs/compat_ioctl.c.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2019-06-06 10:07:36 +02:00
parent c7dc504e2f
commit b7aff093e9
1 changed files with 4 additions and 0 deletions
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4
drivers/tty/tty_io.c
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@ -87,6 +87,7 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/ppp-ioctl.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/module.h>
@ -2811,6 +2812,9 @@ static long tty_compat_ioctl(struct file *file, unsigned int cmd,
#endif
case TIOCGSOFTCAR:
case TIOCSSOFTCAR:
case PPPIOCGCHAN:
case PPPIOCGUNIT:
return tty_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
case TIOCCONS:
case TIOCEXCL: